Monroe County, Florida
Local growing conditions for Monroe County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 9 ZIP codes in our data.
Hardiness zones in Monroe County
Monroe County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Monroe County for its live forecast, frost dates, and planting calendar:
Marathon 33050
Tavernier 33070
Layton 33001
Islamorada, Village of Islands 33036
North Key Largo 33037
Key West 33040
Cudjoe Key 33042
Big Pine Key 33043
Key Colony Beach 33051
More for Florida
- Agriculture in Florida
- Frost dates across Florida
- USDA hardiness zones explained
- Planting calendar by ZIP code
County growing conditions are compiled from our ZIP-code database, USDA hardiness-zone data, and NOAA climate normals. Conditions vary within a county by elevation and local microclimate. Page updated Aug 4, 2026.